Home
Class 11
CHEMISTRY
The enthalpy of neutralisation of a weak...

The enthalpy of neutralisation of a weak acid in 1 M solution with a strong base is `-56.1` kJ `mol^(-1)`/ If the enthalpy of ionization of the acid is 1.5 kJ `mol^(-1)` and enthalpy of neutralization of the strong acid with a strong base is `-57.3` kJ `"equiv"^(-1)`, what is the % ionization of the weak acid in molar solution (assume the acid to be monobasic)?

A

25

B

20

C

15

D

10

Text Solution

Verified by Experts

The correct Answer is:
B
`DeltaH_("ioni")=DeltaH_(WA//SB)-DeltaH_(SA//SB)(0.3)/(1.5)xx100`
Promotional Banner

Similar Questions

Explore conceptually related problems

The enthalpy of neutralization of a Weak monoprotic acid (HA) in 1 M solution with a strong base is -55.95 KJ/mol . If the unionized acid required 1.4 KJ/mol heat for it's comptate ionzatation and enthalpy of netralization of the strong monobasic acid with a strong monoacidic base is -57.3 KJ/mol . What is the % ionzation of the weak acid in molar solution ?

The enthalpy of formation of H_(2)O(l) is -285 KJ mol^(-1) and enthalpy of neutralization of a stron acid and a strong bas is -55 KJ mol^(-1) . What is the enthalpy of formation of OH^(-) ions?

The enthalpy of neutralisation of a strong acid by a string base is -57.32 kJ mol^(-1) . The enthalpy of formation of water is -285.84 kJ mol^(-1) . The enthalpy of formation of hydroxy 1 ion is

The magnitude of enthalpy of neutralisation of a weak acid is smaller than that of a strong acid.

Enthalpy of neutralisation of all strong acids strong bases has the same value because

The enthalpy of formation of H_(2)O(l) is -280.70 kJ/mol and enthalpy of neutralisation of a strong acid and strong base is -56.70 kJ/mol. What is the enthalpy of formation of OH^(-) ions?